Current issue: 54(1)
Under compilation: 54(2)
The article tries to develop the method for defining the requirements of fertilizers for soil. The chemical soil analysis is also seen as the requirement for exact site classification based on height over age. The study is based on 1500 soil samples, one half of them from forest soils, the other half from arable land soils.
The productivity of different forest types and the results of soil analyses are in line with each other. The most important growth factors are discerned. Some shortcomings of the method are discussed. Combining the soil analysis and the plant analyses of the sample plots seems to give the most accurate about the amount of nutrients that are available for the plants.
Nordiska skogsarbetsstudiernas råd (NSR, Council for Inter-Scandinavian Research in Forest Work Science) is the most developed organization in this field. It has only research institute members. The council started in 1953 and has since then had meetings and working groups. Among the latter, an Inter-Scandinavian and British wood nomenclature was created. In 1969 the organization will start a number of joint investigations, two of them in Finland, concerning utilization of waste wood and transport difficulties in forest terrain. Sweden will study branching, Norway relations between men and machines and Denmark broadleaved tree cutting and hauling.
Economists have since 1958 had an Inter-Scandinavian Seminar for Forest Economists (Nordiskt skogsekonomiskt Seminar, NSS), which has only personal members. Also, Inter-Scandinavian forest congresses have been held every fourth year since 1923, in which also research results have been presented.
The PDF includes a summary in English.